permission可數嗎

　　Check permissions carefully.

　　認真檢查權限。

　　Select permissions of your choosing.

　　選擇所需的權限。

　　They cannot leave the country without permission.

　　沒有許可他們不得離開這個國家。

　　The school has been refused permission to expand.

　　學校擴充未得到許可。

　　You are not to leave your station without permission.

　　未經允許，不得離開崗位。